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@ -4,15 +4,64 @@ |
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MOUNTBASE=/mnt |
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MOUNTPOINT="$MOUNTBASE/$MDEV" |
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if [ "$MDEV" = "mmcblk0p3" ]; then |
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MOUNTPOINT="$MOUNTBASE/linuxrootfs1" |
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elif [ "$MDEV" = "mmcblk0p7" ]; then |
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MOUNTPOINT="$MOUNTBASE/userdata" |
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fi |
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ROOTDEV=$(readlink /dev/root) |
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BLOCKS="/sys/block/mmcblk0/mmcblk0p*/uevent" |
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KERNELDEV="" |
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K_PARTNAME="" |
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ROOTFSDEV="" |
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R_PARTNAME="" |
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ROOTSUBDIR="" |
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NEWLAYOUT=0 |
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# to use partnames in old layout, set it to 1 |
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USE_PARTNAMES=0 |
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# |
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check_mmcblk() |
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{ |
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devname="" |
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partname="" |
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for i in $BLOCKS;do |
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if [ "$i" != "$BLOCKS" ];then |
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devname=$(cat $i | grep DEVNAME | cut -d '=' -f 2) |
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if [ "$devname" == "$MDEV" ];then |
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partname=$(cat $i | grep PARTNAME | cut -d '=' -f 2) |
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if [ -n "$(echo $partname | grep 'kernel')" ];then |
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KERNELDEV=$devname |
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K_PARTNAME=$partname |
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break |
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elif [ -n "$(echo $partname | grep 'rootfs')" ];then |
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ROOTFSDEV=$devname |
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R_PARTNAME=$partname |
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if [ -n "$(echo $partname | grep 'linuxrootfs')" ];then |
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NEWLAYOUT=1 |
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R_PARTNAME="linuxrootfs1" |
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fi |
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break |
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elif [ -n "$(echo $partname | grep 'userdata')" ];then |
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ROOTFSDEV=$devname |
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R_PARTNAME=$partname |
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NEWLAYOUT=1 |
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break |
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fi |
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fi |
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fi |
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done |
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[ "$partname" == "swap" -o "$partname" == "swapdata" ] && exit 0 |
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[ "$NEWLAYOUT" == "1" -o "$USE_PARTNAMES" == "1" ] && MOUNTPOINT="$MOUNTBASE/$R_PARTNAME" |
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} |
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# |
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read_cmdline() |
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{ |
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for param in $(cat /proc/cmdline);do |
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if [ -n "$(echo $param | grep rootsubdir)" ];then |
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ROOTSUBDIR=$(echo $param | cut -d '=' -f 2) |
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break |
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fi |
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done |
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} |
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# check partition names |
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check_mmcblk |
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# do not add or remove root device again... |
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[ "$ROOTDEV" = "$MDEV" ] && exit 0 |
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[ "$ROOTDEV" = "$MDEV" -a "$R_PARTNAME" != "userdata" ] && exit 0 |
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if [ -e /tmp/.nomdevmount ]; then |
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LOGINFO "no action on $MDEV -- /tmp/.nomdevmount exists" |
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@ -22,36 +71,78 @@ fi |
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case "$ACTION" in |
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add) |
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# do not mount kernel partitions |
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for i in 2 4 6 8; do |
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if [ ${MDEV:$((${#MDEV}-1)):1} -eq $i ]; then |
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LOGINFO "[$ACTION] /dev/$MDEV is a kernel partition - not mounting." |
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exit 0 |
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fi |
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done |
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# TODO: check for partitions |
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if grep -q "/dev/$MDEV" /proc/mounts; then |
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LOGINFO "/dev/$MDEV already mounted - not mounting again" |
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if [ "$KERNELDEV" == "$MDEV" ];then |
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LOGINFO "[$ACTION] /dev/$MDEV is a kernel partition [$K_PARTNAME] - not mounting." |
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exit 0 |
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fi |
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LOGINFO "[$ACTION] mounting /dev/$MDEV to $MOUNTPOINT" |
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# remove old mountpoint symlinks we might have for this device |
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rm -f $MOUNTPOINT |
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mkdir -p $MOUNTPOINT |
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mount -t auto /dev/$MDEV $MOUNTPOINT 2>&1 >/dev/null |
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RET=$? |
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if [ $RET != 0 ]; then |
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LOGWARN "mount /dev/$MDEV $MOUNTPOINT failed with $RET" |
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LOGWARN " $OUT1" |
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rmdir $MOUNTPOINT |
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# TODO: check for partitions |
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if [ "$NEWLAYOUT" == "1" ];then |
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if grep -q $MOUNTPOINT /proc/mounts; then |
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LOGINFO "/dev/$MDEV already mounted [$R_PARTNAME] - not mounting again" |
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exit 0 |
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fi |
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mkdir -p /tmp/$MDEV |
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mount -t auto /dev/$MDEV /tmp/$MDEV 2>&1 >/dev/null |
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RET=$? |
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[ $RET != 0 ] && LOGWARN "mount /dev/$MDEV to /tmp/$MDEV failed with $RET" && rmdir /tmp/$MDEV |
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if [ "$R_PARTNAME" == "linuxrootfs1" ];then |
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LOGINFO "mounting /dev/$MDEV [$R_PARTNAME] to $MOUNTPOINT" |
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mkdir -p $MOUNTPOINT |
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mount --bind /tmp/$MDEV/linuxrootfs1 $MOUNTPOINT |
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elif [ "$R_PARTNAME" == "userdata" ];then |
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# parse cmdline for rootsubdir |
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read_cmdline |
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for i in /tmp/$MDEV/*;do |
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if [ -n "$(echo $i | grep linuxrootfs)" ];then |
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if [ "$ROOTSUBDIR" == "$(basename $i)" ];then |
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LOGINFO "/dev/$MDEV rootsubdir [$ROOTSUBDIR] is already mounted as root" |
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continue |
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fi |
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MOUNTPOINT="$MOUNTBASE/$(basename $i)" |
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if grep -q $MOUNTPOINT /proc/mounts; then |
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LOGINFO "/dev/$MDEV already mounted [$(basename $i)] - not mounting again" |
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else |
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LOGINFO "mounting /dev/$MDEV [$(basename $i)] to $MOUNTPOINT" |
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mkdir -p $MOUNTPOINT |
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mount --bind /tmp/$MDEV/$(basename $i) $MOUNTPOINT |
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fi |
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fi |
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done |
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fi |
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umount -lf /tmp/$MDEV |
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RET=$? |
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if [ $RET = 0 ]; then |
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rmdir /tmp/$MDEV |
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else |
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LOGWARN "umount /tmp/$MDEV failed with $RET" |
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fi |
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else |
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if grep -q "/dev/$MDEV" /proc/mounts; then |
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LOGINFO "/dev/$MDEV already mounted - not mounting again" |
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exit 0 |
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fi |
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LOGINFO "[$ACTION] mounting /dev/$MDEV to $MOUNTPOINT" |
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# remove old mountpoint symlinks we might have for this device |
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rm -f $MOUNTPOINT |
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mkdir -p $MOUNTPOINT |
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mount -t auto /dev/$MDEV $MOUNTPOINT 2>&1 >/dev/null |
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RET=$? |
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if [ $RET != 0 ]; then |
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LOGWARN "mount /dev/$MDEV $MOUNTPOINT failed with $RET" |
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LOGWARN " $OUT1" |
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rmdir $MOUNTPOINT |
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fi |
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fi |
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;; |
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# I think never comes a 'remove' from mdev, because never the mmcblock will be removed |
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# It can be used for manually ( or per script ) umounting |
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remove) |
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LOGINFO "[$ACTION] unmounting $MOUNTBASE/$MDEV" |
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grep -q "^/dev/$MDEV " /proc/mounts || exit 0 # not mounted... |
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grep -q "$MOUNTBASE/$MDEV " /proc/mounts || exit 0 # not mounted... |
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umount -lf $MOUNTBASE/$MDEV |
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RET=$? |
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if [ $RET = 0 ]; then |
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rmdir $MOUNTPOINT |
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rmdir $MOUNTBASE/$MDEV |
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else |
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LOGWARN "umount $MOUNTBASE/$MDEV failed with $RET" |
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fi |
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vanhofen
6 years ago